"I was intimately aware of the clubhouse in which I lived. I would say that 80 percent of the Dodgers players were consuming them," Gagne wrote, without naming any specific teammates.

Gagne, who last pitched in the majors in 2008 with the Milwaukee Brewers, admitted in 2010 that he used human growth hormone in a three-year period toward the end of his career.

"It was sufficient to ruin my health, tarnish my reputation and throw a shadow over the extraordinary performances of my career," Gagne wrote in his biography, which is titled "Game Over: The Story of Eric Gagne."

Among Gagne’s career highlights: 187 saves, a record-setting run of 84 consecutive saves and an NL Cy Young Award (2003).